<!DOCTYPE html>
  <html lang="en">
  <head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>File Example</title>

    <style>
      html {
        padding: 0;
        margin: 0;
      }
    </style>
  </head>
  <body>
    <main id="container">
      <!-- Comment  -->
      <h1 class="heading-1">Lorem ipsum dolor.</h1>
      <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit.</p>
    </main>

    <script>
      const sum = (x, y) => x + y;
    </script>
  </body>
  </html>
